Table 6.
SEM Tree results for the watershed model
| Path |
Estimate
Before |
Age Split
1 |
Estimate
Between |
Age Split
2 |
Estimate
Between |
Age Split
3 |
Estimate
After |
|---|---|---|---|---|---|---|---|
| CALM | |||||||
| memory ↔ speed | 0.85 | 8.46 | 0.97 | 9.46 | 0.74 | — | — |
| memory → gf | 0.83 | 9.38 | 0.42 | 10.04 | 1.14 | 10.88 | 0.94 |
| speed → gf | 0.04 | 6.88 | −0.19 | 11.21 | 0.17 | — | — |
| SLF → memory | 0.67 | 7.21 | 0.18 | 11.21 | 0.76 | — | — |
| FMaj → memory | 0.59 | 7.71 | 0.14 | 9.29 | 0.33 | 11.13 | 0.74 |
| CG → memory 1 | 0.64 | 6.96 | 0.09 | 11.04 | 0.70 | — | — |
| ATR → speed | 0.96 | 7.13 | 0.68 | 7.96 | 0.17 | 11.96 | 0.65 |
| NKI-RS | |||||||
| memory ↔ speed | 0.90 | 9.82 | 0.48 | 14.72 | 1.11 | — | — |
| memory → gf | 1.10 | 8.59 | 0.59 | 12.67 | 1.03 | — | — |
| speed → gf | 0.53 | 8.59 | −0.12 | 12.96 | 0.52 | — | — |
| SLF → memory | 2.15 | 8.30 | 1.47 | 12.15 | 1.93 | — | — |
| SLF → speed | 3.12 | 8.63 | 1.83 | 15.09 | 2.31 | — | — |
Note. The table shows differences in parameter estimates for paths of interest (as shown in Figs 4 and 5) depending on participants’ age in years. Our analyses allowed for a maximum of 3 age splits (and thus 4 age groups). An absence of a third age split (denoted by"—"in the table) indicates that the SEM tree split only twice, suggesting no further changes in parameter strength after the second split. See Supplementary Figure 7 for a graphical representation of these results.